Bump version from 1.5.4 to 1.5.5

Author: wollewald

library.properties

@@ -1,5 +1,5 @@
 name=ADS1115_WE
-version=1.5.4
+version=1.5.5
 author=Wolfgang Ewald <wolfgang.ewald@wolles-elektronikkiste.de>
 maintainer=Wolfgang Ewald <wolfgang.ewald@wolles-elektronikkiste.de>
 sentence=A library for the ADS1115 and the ADS1015 ADC
@@ -8,3 +8,4 @@ category=Signal Input/Output
 url=https://github.com/wollewald/ADS1115_WE
 architectures=*
 includes=ADS1115_WE.h
+